Portable rotary barbecue machine



Nov. 2 1926. 1,605,143 C. E; RENFRQE v PORTABLE ROTARY BARBECU MACHINE Filed July 26, 1926 1J Z f5-1 iig@ lll Patented Nov. V2, 1926.

UNITED STATES CLARENCE BENFROE, F PORTLAND, OREGON.

PORTABLE ROTARY BARBECUE MACHINE.

Application led .Tuly v26,

My invention relates to barbecuing machines of the portable type, and has for its object, the barbecuing of meat before an open fire. The machine primarily consists of a frame structure, lined with lire brick, p and having a vertically disposed griddle dis- Vposed within the same adapted to the maintaining of a live fire therebehind. An adjustable driving mechanism is disposed on I `the front of the device, adapted to rotate the spindles, carrying the spits for maintaining the products tobe roasted thereupon,

which said spindles and spits are adaptable to a frame for movingto and awayfrom the fire; means being also provided for-the removing oufleither of-h the spindles independent of the other, without interfering with the rotation of the remaining spindle. g

A further object of my invention consists in providing portable mechanism havlng a power unit electric motor, place to place,

mechanism.

A further .object lof my invention consists in placinga hood and stack above the same to carry oif the products of combustion and roasting.`

A further object of my invention consists in placing a drip pan and lash scuttle im- Y mediately below and in the base 0f the disposed thereupon, as an asa completely assembled device. y

With these and incidental objects 1n view, the inventioneaconsists 1n certain novel features of construction and combination of of which are Fig. '3 is a cross` section of Fig. 1, taken on line v3-3 thereof.

Fig. 4 is a perspective view of thek sliding frame that supports the operating mecha- Il nism and the spits.

which which may be moved from` grate 5, and may products and the juices of 1926. serial No. 125,010.

Fig. 5 is a detailed view of one of the spits and its associated gear.

In my invention 1 represents the outer jacket of the furnace, which has a hood 2 projecting outwardly over the open front 60 thereof. 3 is a flue leading through the top of the furnace and provides a means for the escape vof the gases from the hood and the furnace proper. The furnace is lined on the interior with a fire resistant material, which may be the lire brick 4, or it may be lined with other fire resistant material may be placed therein in a plastic state. A horizontal grate 5 is disposed transversely of the furnace and spaced apart from the bottom thereof.

A vertical open faced grid 6 is mounted Vwithin the furnace parallel to the rear wall thereof. A space is provided between the grid and the rear wall to receive fuel, which maybe charcoal, or coal; and, if desired, a proper burner may be placed therein to burn liquid fuel, such as gas. An ash-pan 7, vis placed withinthe space beneath the Y be removed through an opening in the front of the furnace.

Extending from the grate 5 outwardly, is a shelf 48, which is sup ortedAat its outer edge by the bracket 9. drippan 10, may be placed upon the shelf 8, into which fatty the roasts may drip.

Ina device of this kind, it is desirable to move the articles to be roasted to or from fire, and I accomplish this by providing a slidable frame composed ofthe side members 11 and 11A which are secured together inV parallelv alignment by the cross bar 12, as illustrated in Fig. 4. The rivets 13 showone method of securing the side members to the cross bar. A slot 14 is formed in the side members 11 and 11A which .fit about and slide upon the roller supports 15,

'which are secured to the side walls of the furnace. This permits the side members to l be-moved to and from the fire in the furnace. To maintain said side members in an upright position, the 'rollers 15A are pro-v vided to engage the lower edge thereof.

The side member 11 has a base 17, eXtend- 105 ing do nwardly'and outwardly therefrom. This ba e is provided to support an electric motor 16, or other prime mover, In this instance an electric motor is shown.

A reduction gear 21 is mounted on the 11 outwardly extending base 22 at the side of the side member 1l. The reduction gear shownis preferably of the worm and gear type;. but any desired ty e, within the limits of construction herein shown, may be used. The high speed shaft 20 of the reduction ear has a pulley 18 mounted thereon, which 1s connected to the pulley of the motor 16 by a chain drive, Aor as herein shown by a belt 19. The low speed shaft 27 of the reduction gear 21, extends through the hole 27A of the side member 11, and has a chain sprocket 28 mounted upon the outer end thereof.

A stub shaft 31 extends through thehole 27B of the side member 11, and is maintained therein by suitable bearings. Sprocket is mounted on shaft 31 and in alignment with sprocket 28, mounted on shaft 27. Gear 32 is mounted at the outer end of stub shaft 31. Sprockets 28 and 30 are connected by the chain drive 29.

Vertical slots 36 are formed in the upper ends of side members 11 Aand 11A, and oblique slots are formed in the outer edges thereof, which are provided to receivethe spindles 23 and 24. p The spindles 23 and 24 have each one pointed end and one blunt end. A clrcumfeiential groove 37 is formed in each of the spindles adjacent the blunt end; and

when the spindles are placed within -the slots 35 and 36, the circumferential grooves engage the slots and prohibit any lateral movement of the spindles. Gears 33 and 34 are mounted on the spindles 24and 23 respectively, and engage and are to be rotated by gear 32 on the stub shaft 31. To maintain the articles to be barbecued in a proper position upon the spindles, detachable hooks 25 and 26 are provided. v

The operation of my device is as follows: The prime mover through the medium of the reduction gear 21, rotates the sprocket 28 which in turn is connected to and rotates the sprocket 30 on the stub shaft 31, and

the gear 32 also on said stub shaft. The

spits or spindles 23 and 24, are rotated through the gears 33 and 34 engaging gear 32 of the stub shaft.

Heretofore in a deviceof this character, the spits have been mounted on an immovable frame work before the ire, which necessitated the removal of the spits when the tire became too hot. Applicant has `overcome this diiiculty by providing a slidable frame work which may be moved toward or from the fire, while the device is in operation. Applicant has also provided means whereby either of the spits may be operated independently of the other, and either spit may be removed without stopping the operation of the other. Y

While. the form of mechanism herein shown and described is admirably adapted to -fuliill the objects primarily stated, it is to be understood that it is not intended to cou-` outstanding rollers disposed at each side of said furnace, parallel side members slidable on said rollers, a prime mover and a train of gears mounted on -one of said side members, detachable spits rotatably supported 'by said side members, and gears mounted on said spits to engage with and be rotated by said train of gears. A

2. In a portable rotary barbecue, an open front furnace having a fire proof lining, a hood disposed outwardly at the top of said furnace, a fluefdisposed at the top of said furnace and leading thereinto, a horizontal grate within said furnace and spaced apart from the bottom, a vertical grid mounted Within said furnace and spaced apart from the rear wall thereof, a horizontal shelf extending outwardly from said grate, horizontal rollers mounted to each side of said furnace, side members slidably mounted on said rollers, a cross bar securing said side members in parallel alignment, a prime mover anda train of gears mountedon one side of said side members, a stub shaft rotatably mounted on said last mentioned side member, and rotatably connected to said train of gears, a gear mounted on said stub shaft and .rotating therewith, there being a plurality tical grid mounted within said 'furnace and spaced apart from-the rear wall thereof, a horizontal grate mounted within said furnace and spaced apart from the bottom thereof, a removable ash-pan disposed below said grate, a horizontal shelf extending outwardly fromsaid grate outstanding rollers disposed at each side of the furnace, side members slidably mounted on said rollers, a cross bar securing 'said side members in parallel alignment, a reduction gear mounted on one of said side members and having a low speed shaft extending therethrough, an electric motor mounted on said side member, a belt 10 speed shaft connection a pulley mounted on said electric motor with a pulley mounted on the high speed shaft of the reduction gear, a chain sprocket mounted on the low speed shaft of the reduction gear, a stub shaft rotatably mounted through said last, mentioned side member, a chain sprocket mounted on said stub shaft and connected by a chain drive to the chain sprocket mounted on the low of the reduction gear, a gear mounted on said stub shaft, there being a lurality' of slots formed in said side memers, a plurality of spindles each having one pointed and one sharp end, removably maintained Within said slots, there being a circumferential groove formed in each of said spindles and engaging with the ear mounted on the stub shaft, and detac able hooks mounted upon said s indle.

CLARE CE E. RENFROE. 

